Prism Gellic
Rare spawn which shows up only if you have 2 or more items acquired during the current run and aren't at full HP; rare spawns will have different trigger conditions to fight them, most times they won't be too stringent.
Most gellics are simpler forms, less body units and fewer legs, also with more straight forward fluids residing inside. If you beat this you'll get a relic that grants you bonus armor and elemental resistances which you can sacrifice to heal yourself back up to full health. If you do, though, then it's banished from the game and you'll have to hunt down another prism gellic in order to acquire its hide again












